Refractive Index Sensor by Interrogation of Etched MgO Nanoparticle-Doped Optical Fiber Signature

Sanzhar Korganbayev, Madina Shaimerdenova, Takhmina Ayupova, Marzhan Sypabekova, Aliya Bekmurzayeva, Wilfried Blanc, Carlo Molardi, Daniele Tosi

Research output: Contribution to journalArticle

Abstract

Traditional fiber-optic refractive index (RI) sensors require a reflective or resonant device in fiber (such as a grating, an interferometer, a taper, or a plasmonic device) and a spectral domain detection. In this letter, we demonstrate and experimentally validate, the possibility to fabricate a minimalistic RI sensor, based on the wet-etching of an enhanced backscattering fiber made with a core doped with MgO-based-nanoparticles. Interrogation is performed in the length domain, by detecting and correlating the random losses of the fiber with an optical backscatter reflectometer. The sensitivity is 5.25 mm/RIU with 9.6μm resolution, corresponding to 9.69 ps/RIU.

Original languageEnglish
Article number8747358
Pages (from-to)1253-1256
Number of pages4
JournalIEEE Photonics Technology Letters
Volume31
Issue number15
DOIs
Publication statusPublished - Aug 1 2019

Fingerprint

interrogation
Optical fibers
Refractive index
optical fibers
signatures
refractivity
Nanoparticles
nanoparticles
fibers
Fibers
sensors
Sensors
reflectometers
Wet etching
Reflectometers
Backscattering
tapering
Interferometers
Fiber optics
fiber optics

Keywords

  • distributed sensing
  • optical fiber sensor
  • Refractive index sensor
  • specialty fibers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Refractive Index Sensor by Interrogation of Etched MgO Nanoparticle-Doped Optical Fiber Signature. / Korganbayev, Sanzhar; Shaimerdenova, Madina; Ayupova, Takhmina; Sypabekova, Marzhan; Bekmurzayeva, Aliya; Blanc, Wilfried; Molardi, Carlo; Tosi, Daniele.

In: IEEE Photonics Technology Letters, Vol. 31, No. 15, 8747358, 01.08.2019, p. 1253-1256.

Research output: Contribution to journalArticle

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